(DEBKA) — U.S. President Barack Obama is busy aligning Middle East allies with the next US steps on Iran. Contributing to the mounting sense in Washington of an approaching US-Iranian confrontation, the Pentagon is substantially building up its combat power around Iran, stationing nearly 15,000 troops in Kuwait – two Army infantry brigades and a helicopter unit – and keeping two aircraft carriers the region. The USS Carl Vinson, the USS John Stennis which was to have returned to home base and their strike groups will stay in the Arabian Sea.